<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1665-3521</journal-id>
<journal-title><![CDATA[Superficies y vacío]]></journal-title>
<abbrev-journal-title><![CDATA[Superf. vacío]]></abbrev-journal-title>
<issn>1665-3521</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1665-35212010000400002</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Características de películas de SiOF obtenidas por APCVD con HF como fuente de flúor]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pacio]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Juárez]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Díaz]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rosendo]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Escalante]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Benemérita Universidad Autónoma de Puebla Centro de Investigaciones en Dispositivos Semiconductores ]]></institution>
<addr-line><![CDATA[ Puebla]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2010</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2010</year>
</pub-date>
<volume>23</volume>
<numero>4</numero>
<fpage>05</fpage>
<lpage>08</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1665-35212010000400002&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1665-35212010000400002&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1665-35212010000400002&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Se obtuvieron películas de óxido de silicio fluorado (SiOF) en un reactor convencional de depósito químico en fase vapor a presión atmosférica (APCVD), usando tetraetilortosilicato (TEOS) y ozono (O3) como precursores de SiO2, el anhídrido fluorhídrico fue empleado para la incorporación de átomos de flúor. Las películas fueron depositadas variando la temperatura del sustrato en el intervalo de 200 a 275 °C. La estructura de los enlaces químicos de las películas fue evaluada por espectroscopia infrarroja de transformada de Fourier (FTIR), y el índice de refracción por elipsometría. Los espectros FTIR de absorbancia de las películas depositadas muestran el modo de vibración correspondiente a enlaces Si-F y cuya intensidad depende de la concentración de átomos, y ésta a su vez depende de la temperatura de depósito. La incorporación de flúor tiene una contribución en la reducción del índice de refracción en las películas de SiOF, el cual, disminuye de 1.46 a 1.35. Por lo tanto, el principal mecanismo responsable para esta disminución es la porosidad generada en las películas debido a la incorporación de flúor en la red. La constante dieléctrica fue reducida de 4.2, que corresponde a películas de SiO2, a valores que se encuentran en el intervalo de 3.18 a 3.6, para películas de SiOF obtenidas por la técnica APCVD.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Fluorinated silicon oxide (SiOF) films were obtained in a conventional atmospheric pressure chemical vapor deposition (APCVD) reactor, using tetraethoxysilane (TEOS) and ozone (O3) as precursor of SiO2, and the fluorhydric anhydride was used for incorporation of fluorine atoms. The SiOF films were deposited changing the temperature of the substrate in the range of 200 to 275 °C. The chemical bonding structure of the films was evaluated by Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, and the refractive index by ellipsometry. FTIR absorption spectra of the films deposited show the vibration mode corresponding to Si-F bonds and its intensity depend of the deposit temperature and of the atoms concentration. The incorporation of fluorine has a contribution in the reduction of the refractive index of SiOF films, which decrease of 1.46 to 1.35. Therefore, the main mechanism responsible for the reduction of the refractive index is the porosity, generated by the incorporation of the fluorine atom in the network. Dielectric constant was reduced of 4.2, that corresponding to SiO2 films, to values in the range of 3.18 to 3.6 for SiOF films by APCVD technique.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Sistema APCVD]]></kwd>
<kwd lng="es"><![CDATA[Películas de SiOF]]></kwd>
<kwd lng="es"><![CDATA[TEOS]]></kwd>
<kwd lng="es"><![CDATA[Espectroscopia FTIR]]></kwd>
<kwd lng="es"><![CDATA[SIMS]]></kwd>
<kwd lng="en"><![CDATA[APCVD system]]></kwd>
<kwd lng="en"><![CDATA[SiOF films]]></kwd>
<kwd lng="en"><![CDATA[TEOS]]></kwd>
<kwd lng="en"><![CDATA[FTIR spectroscopy]]></kwd>
<kwd lng="en"><![CDATA[SIMS]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="center"><font face="verdana" size="4"><b>Caracter&iacute;sticas de pel&iacute;culas de SiOF obtenidas por APCVD con HF como fuente de fl&uacute;or</b></font></p>     <p align="center"><font face="verdana" size="2">&nbsp;</font></p>     <p align="center"><font face="verdana" size="2"><b>M. Pacio*, H. Ju&aacute;rez, T. D&iacute;az, G. Garc&iacute;a, E. Rosendo, G. Escalante y R. P&eacute;rez</b></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><i>Centro de Investigaciones en Dispositivos Semiconductores, Benem&eacute;rita Universidad Aut&oacute;noma de Puebla 14 Sur y San Claudio, Ciudad Universitaria, C. P. 72570, Puebla, M&eacute;xico.</i></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2">Recibido: 30 de junio de 2010.    <br> Aceptado: 12 de noviembre de 2010.</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Resumen</b></font></p>     ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">Se obtuvieron pel&iacute;culas de &oacute;xido de silicio fluorado (SiOF) en un reactor convencional de dep&oacute;sito qu&iacute;mico en fase vapor a presi&oacute;n atmosf&eacute;rica (APCVD), usando tetraetilortosilicato (TEOS) y ozono (O<sub>3</sub>) como precursores de SiO<sub>2</sub>, el anh&iacute;drido fluorh&iacute;drico fue empleado para la incorporaci&oacute;n de &aacute;tomos de fl&uacute;or. Las pel&iacute;culas fueron depositadas variando la temperatura del sustrato en el intervalo de 200 a 275 &deg;C. La estructura de los enlaces qu&iacute;micos de las pel&iacute;culas fue evaluada por espectroscopia infrarroja de transformada de Fourier (FTIR), y el &iacute;ndice de refracci&oacute;n por elipsometr&iacute;a. Los espectros FTIR de absorbancia de las pel&iacute;culas depositadas muestran el modo de vibraci&oacute;n correspondiente a enlaces Si&#150;F y cuya intensidad depende de la concentraci&oacute;n de &aacute;tomos, y &eacute;sta a su vez depende de la temperatura de dep&oacute;sito. La incorporaci&oacute;n de fl&uacute;or tiene una contribuci&oacute;n en la reducci&oacute;n del &iacute;ndice de refracci&oacute;n en las pel&iacute;culas de SiOF, el cual, disminuye de 1.46 a 1.35. Por lo tanto, el principal mecanismo responsable para esta disminuci&oacute;n es la porosidad generada en las pel&iacute;culas debido a la incorporaci&oacute;n de fl&uacute;or en la red. La constante diel&eacute;ctrica fue reducida de 4.2, que corresponde a pel&iacute;culas de SiO<sub>2</sub>, a valores que se encuentran en el intervalo de 3.18 a 3.6, para pel&iacute;culas de SiOF obtenidas por la t&eacute;cnica APCVD.</font></p>     <p align="justify"><font face="verdana" size="2"><b>Palabras clave: </b>Sistema APCVD; Pel&iacute;culas de SiOF; TEOS; Espectroscopia FTIR; SIMS.</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Abstract </b></font></p>     <p align="justify"><font face="verdana" size="2">Fluorinated silicon oxide (SiOF) films were obtained in a conventional atmospheric pressure chemical vapor deposition (APCVD) reactor, using tetraethoxysilane (TEOS) and ozone (O<sub>3</sub>) as precursor of SiO<sub>2</sub>, and the fluorhydric anhydride was used for incorporation of fluorine atoms. The SiOF films were deposited changing the temperature of the substrate in the range of 200 to 275 &deg;C. The chemical bonding structure of the films was evaluated by Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, and the refractive index by ellipsometry.</font></p>     <p align="justify"><font face="verdana" size="2">FTIR absorption spectra of the films deposited show the vibration mode corresponding to Si&#150;F bonds and its intensity depend of the deposit temperature and of the atoms concentration. The incorporation of fluorine has a contribution in the reduction of the refractive index of SiOF films, which decrease of 1.46 to 1.35. Therefore, the main mechanism responsible for the reduction of the refractive index is the porosity, generated by the incorporation of the fluorine atom in the network. Dielectric constant was reduced of 4.2, that corresponding to SiO<sub>2</sub> films, to values in the range of 3.18 to 3.6 for SiOF films by APCVD technique.</font></p>     <p align="justify"><font face="verdana" size="2"><b>Keywords: </b>APCVD system; SiOF films; TEOS; FTIR spectroscopy; SIMS.</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><a href="/pdf/sv/v23n4/v23n4a2.pdf" target="_blank">DESCARGAR ART&Iacute;CULO EN FORMATO PDF</a></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     ]]></body>
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